I have the product code 059L7Z9, one from the list above with no PR1.2 release yet...I bought the phone for a good price a month ago from the distributor in Czech Republic who apparently got it from some crappy Polish-Orange distribution...
nevertheless, the first thing I did when I found out was that I flashed the phone with Central Europe variant (which gets FW updates amongst the first) and Iīve been happily using PR1.2 ever since...
I didnīt need to change product code or anything, such feint simply works with N9 and has worked ever since...

I just don't understand the logic of a big company like Nokia leaving its customer on its own after collecting Ģ400...if it is economically unsustainable to maintain so many different versions of software, why creating them in the first place?...

or why during last update they did not convert my version (or any other versions they consider unworthy of their effort and attention to a "better" version which they would be happy to support over time?